Amazon.com has Harry Potter 7.2 (as we call it) for pre-order at the low price of $14.99! This is down from $16.99. And if the price drops before it is released, Amazon has a pre-order guarantee! It even includes a Digital Copy.
Link to offer: http://www.amazon.com/Potter-Deathly-Hallows-UltraViolet-Digital/dp/B001UV4XIS/ref=sr_1_1?ie=UTF8&qid=1320279553&sr=8-1